2 * Copyright (C) 1998-2007 Andre Noll <maan@systemlinux.org>
4 * Licensed under the GPL v2. For licencing details see COPYING.
7 /** \file gui.c ncurses-based interface for paraslash */
9 #include "gui.cmdline.h"
13 #include "ringbuffer.h"
19 /** define the array of error lists needed by para_gui */
21 extern const char *status_item_list[NUM_STAT_ITEMS];
22 static char *stat_content[NUM_STAT_ITEMS];
24 #define STANDARD_STATUS_BAR "para_gui " PACKAGE_VERSION " (hit ? for help)"
26 static int signal_pipe;
28 static void finish(int sig);
30 static struct win_data {
36 } top, bot, sb, in, sep;
38 #define RINGBUFFER_SIZE 512
45 #define NUM_LINES(len) (1 + (len) / bot.cols)
47 static unsigned scroll_position;
49 static int cmd_died, curses_active;
52 static int command_pipe = -1;
53 static int audiod_pipe = -1;
54 static struct gui_args_info conf;
56 enum {GETCH_MODE, COMMAND_MODE, EXTERNAL_MODE};
59 #define COLOR_STATUSBAR 32
60 #define COLOR_COMMAND 33
61 #define COLOR_OUTPUT 34
63 #define COLOR_ERRMSG 36
64 #define COLOR_WELCOME 37
65 #define COLOR_SEPARATOR 38
72 const char *description;
73 void (*handler)(void);
79 char postfix[MAXLINE];
85 char content[MAXLINE];
88 static struct gui_theme theme;
93 static void com_help(void);
94 static void com_reread_conf(void);
95 static void com_enlarge_top_win(void);
96 static void com_shrink_top_win(void);
97 static void com_version(void);
98 static void com_quit(void);
99 static void com_refresh(void);
100 static void com_ll_incr(void);
101 static void com_ll_decr(void);
102 static void com_prev_theme(void);
103 static void com_next_theme(void);
104 static void com_scroll_up(void);
105 static void com_scroll_down(void);
106 static void com_page_up(void);
107 static void com_page_down(void);
109 struct gui_command command_list[] = {
113 .description = "print help",
117 .name = "enlarge_win",
118 .description = "enlarge the top window",
119 .handler = com_enlarge_top_win
122 .name = "shrink_win",
123 .description = "shrink the top window",
124 .handler = com_shrink_top_win
127 .name = "reread_conf",
128 .description = "reread configuration file",
129 .handler = com_reread_conf
133 .description = "exit para_gui",
138 .description = "redraw the screen",
139 .handler = com_refresh
142 .name = "next_theme",
143 .description = "switch to next theme",
144 .handler = com_next_theme
147 .name = "prev_theme",
148 .description = "switch to previous stream",
149 .handler = com_prev_theme
153 .description = "increase loglevel (decreases verbosity)",
154 .handler = com_ll_incr
158 .description = "decrease loglevel (increases verbosity)",
159 .handler = com_ll_decr
163 .description = "show the para_gui version",
164 .handler = com_version
168 .description = "scroll up one line",
169 .handler = com_scroll_up
172 .name = "scroll_down",
173 .description = "scroll down one line",
174 .handler = com_scroll_down
178 .description = "scroll up one page",
179 .handler = com_page_up
183 .description = "scroll down one page",
184 .handler = com_page_down
190 static int find_cmd_byname(char *name)
194 for (i = 0; command_list[i].handler; i++)
195 if (!strcmp(command_list[i].name, name))
200 /* taken from mutt */
201 static char *km_keyname(int c)
206 sprintf(buf, "<up>");
210 sprintf(buf, "<down>");
214 sprintf(buf, "<left>");
217 if (c == KEY_RIGHT) {
218 sprintf(buf, "<right>");
221 if (c == KEY_NPAGE) {
222 sprintf(buf, "<npage>");
225 if (c == KEY_PPAGE) {
226 sprintf(buf, "<ppage>");
229 if (c < 256 && c > -128 && iscntrl((unsigned char) c)) {
234 buf[1] = (c + '@') & 0x7f;
237 snprintf(buf, sizeof(buf), "\\%d%d%d", c >> 6,
238 (c >> 3) & 7, c & 7);
239 } else if (c >= KEY_F0 && c < KEY_F(256))
240 sprintf(buf, "<F%d>", c - KEY_F0);
242 snprintf(buf, sizeof(buf), "%c", (unsigned char) c);
244 snprintf(buf, sizeof(buf), "\\x%hx", (unsigned short) c);
248 static char *configfile_exists(void)
250 static char *config_file;
253 if (!conf.config_file_given) {
255 char *home = para_homedir();
256 config_file = make_message("%s/.paraslash/gui.conf",
262 tmp = conf.config_file_arg;
263 return file_exists(tmp)? tmp: NULL;
267 * print num spaces to curses window
269 static void add_spaces(WINDOW* win, unsigned int num)
278 * print aligned string to curses window. This function always prints
281 static int align_str(WINDOW* win, const char *string, unsigned int len,
284 int num; /* of spaces */
289 num = len - strlen(string);
290 str = para_strdup(string);
297 add_spaces(win, num);
298 } else if (align == RIGHT) {
299 add_spaces(win, num);
302 add_spaces(win, num / 2);
303 waddstr(win, str[0]? str: "");
304 add_spaces(win, num - num / 2);
310 __printf_2_3 static void print_in_bar(int color, const char *fmt,...)
316 wattron(in.win, COLOR_PAIR(color));
317 PARA_VSPRINTF(fmt, msg);
319 align_str(in.win, msg, sb.cols, LEFT);
325 * update the status bar
327 static void print_status_bar(void)
332 align_str(sb.win, STANDARD_STATUS_BAR, sb.cols, CENTER);
337 * get the number of the oldest rbe that is (partially) visible. On return,
338 * lines contains the sum of the number of lines of all visable entries. If the
339 * first one is only partially visible, lines is greater than bot.lines.
341 static int first_visible_rbe(unsigned *lines)
345 for (i = scroll_position; i < RINGBUFFER_SIZE; i++) {
346 struct rb_entry *rbe = ringbuffer_get(bot_win_rb, i);
350 // fprintf(stderr, "found: %s\n", rbe->msg);
351 rbe_lines = NUM_LINES(rbe->len);
352 if (rbe_lines > bot.lines)
355 if (*lines >= bot.lines)
358 return RINGBUFFER_SIZE - 1;
361 static int draw_top_rbe(unsigned *lines)
364 int offset, fvr = first_visible_rbe(lines);
365 struct rb_entry *rbe;
369 wmove(bot.win, 0, 0);
370 rbe = ringbuffer_get(bot_win_rb, fvr);
373 /* first rbe might be only partially visible */
374 offset = (*lines - bot.lines) * bot.cols;
375 len = strlen(rbe->msg);
376 if (offset < 0 || len < offset)
378 wattron(bot.win, COLOR_PAIR(rbe->color));
379 waddstr(bot.win, rbe->msg + offset);
380 *lines = NUM_LINES(len - offset);
384 static void redraw_bot_win(void)
389 wmove(bot.win, 0, 0);
391 i = draw_top_rbe(&lines);
394 while (i > 0 && lines < bot.lines) {
395 struct rb_entry *rbe = ringbuffer_get(bot_win_rb, --i);
398 waddstr(bot.win, "\n");
401 lines += NUM_LINES(rbe->len);
402 wattron(bot.win, COLOR_PAIR(rbe->color));
403 waddstr(bot.win, "\n");
404 waddstr(bot.win, rbe->msg);
410 static void rb_add_entry(int color, char *msg)
412 struct rb_entry *old, *new = para_malloc(sizeof(struct rb_entry));
415 new->len = strlen(msg);
417 old = ringbuffer_add(bot_win_rb, new);
418 // fprintf(stderr, "added: %s\n", new->msg);
423 if (scroll_position) {
424 /* discard current scrolling, like xterm does */
429 wattron(bot.win, COLOR_PAIR(color));
430 getyx(bot.win, y, x);
432 waddstr(bot.win, "\n");
433 waddstr(bot.win, msg);
437 * print formated output to bot win and refresh
439 __printf_2_3 static void outputf(int color, const char* fmt,...)
445 PARA_VSPRINTF(fmt, msg);
446 rb_add_entry(color, msg);
450 static void add_output_line(char *line)
454 rb_add_entry(COLOR_OUTPUT, para_strdup(line));
457 void para_log(int ll, const char *fmt,...)
462 if (ll < conf.loglevel_arg || !curses_active)
471 color = COLOR_ERRMSG;
473 PARA_VSPRINTF(fmt, msg);
475 rb_add_entry(color, msg);
479 static void setup_signal_handling(void)
481 signal_pipe = para_signal_init();
482 para_install_sighandler(SIGINT);
483 para_install_sighandler(SIGTERM);
484 para_install_sighandler(SIGCHLD);
485 para_install_sighandler(SIGWINCH);
486 para_install_sighandler(SIGUSR1);
487 signal(SIGPIPE, SIG_IGN);
488 signal(SIGHUP, SIG_IGN);
491 static void do_exit(int ret)
493 signal(SIGTERM, SIG_IGN);
498 static void shutdown_curses(void)
507 static void finish(int ret)
514 * exit curses and print given message to stdout/stderr
516 __printf_2_3 static void msg_n_exit(int ret, const char* fmt, ...)
519 FILE *outfd = ret? stderr: stdout;
523 vfprintf(outfd, fmt, argp);
528 static void print_welcome(void)
530 int ll = conf.loglevel_arg;
533 outputf(COLOR_WELCOME, "Welcome to para_gui " PACKAGE_VERSION
534 " \"" CODENAME "\". Theme: %s", theme.name);
541 static void init_wins(int top_lines)
545 top.lines = top_lines;
550 bot.lines = LINES - top.lines - 3;
552 bot.begy = top.lines + 1;
567 sep.begy = top.lines;
570 assume_default_colors(theme.default_fg, theme.default_bg);
572 mvwin(top.win, top.begy, top.begx);
573 wresize(top.win, top.lines, top.cols);
575 mvwin(sb.win, sb.begy, sb.begx);
576 wresize(sb.win, sb.lines, sb.cols);
578 mvwin(sep.win, sep.begy, sep.begx);
579 wresize(sep.win, sep.lines, sep.cols);
581 mvwin(bot.win, bot.begy, bot.begx);
582 wresize(bot.win, bot.lines, bot.cols);
584 mvwin(in.win, in.begy, in.begx);
585 wresize(in.win, in.lines, in.cols);
587 sep.win = newwin(sep.lines, sep.cols, sep.begy, sep.begx);
588 top.win = newwin(top.lines, top.cols, top.begy, top.begx);
589 bot.win = newwin(bot.lines, bot.cols, bot.begy, bot.begx);
590 sb.win = newwin(sb.lines, sb.cols, sb.begy, sb.begx);
591 in.win = newwin(in.lines, in.cols, in.begy, in.begx);
592 if (!top.win || !bot.win || !sb.win || !in.win || !sep.win)
593 msg_n_exit(1, "Error: Cannot create curses windows\n");
597 scrollok(bot.win, 1);
598 wattron(sb.win, COLOR_PAIR(COLOR_STATUSBAR));
599 wattron(sep.win, COLOR_PAIR(COLOR_SEPARATOR));
600 wattron(bot.win, COLOR_PAIR(COLOR_BOT));
601 wattron(top.win, COLOR_PAIR(COLOR_TOP));
613 wmove(sep.win, 0, 0);
614 for (i = 1; i <= COLS; i++)
615 waddstr(sep.win, theme.sep_str);
618 wnoutrefresh(top.win);
619 wnoutrefresh(bot.win);
620 //wnoutrefresh(sb.win);
622 wnoutrefresh(in.win);
623 wnoutrefresh(sep.win);
627 static void check_geometry(void)
629 if (LINES < theme.lines_min || COLS < theme.cols_min)
630 msg_n_exit(EXIT_FAILURE, "Error: Terminal (%dx%d) too small"
631 " (need at least %dx%d)\n", COLS, LINES,
632 theme.cols_min, theme.lines_min);
636 * Print stat item #i to curses window
638 static void print_stat_item(int i)
641 struct stat_item_data d = theme.data[i];
642 char *c = stat_content[i];
644 if (!curses_active || !d.len || !c)
646 tmp = make_message("%s%s%s", d.prefix, c, d.postfix);
647 // PARA_DEBUG_LOG("%s: read: %s\n", __func__, tmp);
648 wmove(top.win, d.y * top.lines / 100, d.x * COLS / 100);
650 wattron(top.win, COLOR_PAIR(i + 1));
651 align_str(top.win, tmp, d.len * COLS / 100, d.align);
656 static void print_all_items(void)
662 for (i = 0; i < NUM_STAT_ITEMS; i++)
665 static void clear_all_items(void)
669 for (i = 0; i < NUM_STAT_ITEMS; i++) {
670 free(stat_content[i]);
671 stat_content[i] = para_strdup("");
675 static void init_colors(void)
679 msg_n_exit(EXIT_FAILURE, "Error: No color term\n");
681 for (i = 0; i < NUM_STAT_ITEMS; i++)
682 if (theme.data[i].len)
683 init_pair(i + 1, theme.data[i].fg, theme.data[i].bg);
684 init_pair(COLOR_STATUSBAR, theme.sb_fg, theme.sb_bg);
685 init_pair(COLOR_COMMAND, theme.cmd_fg, theme.cmd_bg);
686 init_pair(COLOR_OUTPUT, theme.output_fg, theme.output_bg);
687 init_pair(COLOR_MSG, theme.msg_fg, theme.msg_bg);
688 init_pair(COLOR_ERRMSG, theme.err_msg_fg, theme.err_msg_bg);
689 init_pair(COLOR_WELCOME, theme.welcome_fg, theme.welcome_bg);
690 init_pair(COLOR_SEPARATOR, theme.sep_fg, theme.sep_bg);
691 init_pair(COLOR_TOP, theme.default_fg, theme.default_bg);
692 init_pair(COLOR_BOT, theme.default_fg, theme.default_bg);
696 * (re-)initialize the curses library FIXME: Error checking
698 static void init_curses(void)
701 if (top.win && refresh() == ERR) { /* refesh is really needed */
702 msg_n_exit(EXIT_FAILURE, "refresh() failed\n");
705 curs_set(0); /* make cursor invisible, ignore errors */
706 // if (noraw() == ERR);
707 // msg_n_exit(EXIT_FAILURE, "can not place terminal out of "
709 nonl(); /* tell curses not to do NL->CR/NL on output */
710 noecho(); /* don't echo input */
711 cbreak(); /* take input chars one at a time, no wait for \n */
715 init_wins(theme.top_lines_default);
717 noecho(); /* don't echo input */
721 static void check_sigchld(void)
725 pid = para_reap_child();
728 if (pid == cmd_pid) {
732 goto reap_next_child;
736 * print status line if line starts with known command.
738 static void check_stat_line(char *line)
742 // PARA_INFO_LOG("%s: checking: %s\n", __func__, line);
743 i = stat_line_valid(line);
745 line += strlen(status_item_list[i]) + 1;
746 free(stat_content[i]);
747 stat_content[i] = para_strdup(line);
754 * This sucker modifies its first argument. *handler and *arg are
755 * pointers to 0-terminated strings (inside line). Crap.
757 static int split_key_map(char *line, char **handler, char **arg)
759 if (!(*handler = strchr(line + 1, ':')))
763 if (!(*arg = strchr(*handler, ':')))
772 static int check_key_map_args(void)
776 char *tmp = NULL, *handler, *arg;
778 for (i = 0; i < conf.key_map_given; ++i) {
779 s = conf.key_map_arg[i];
783 tmp = para_strdup(s);
784 if (!split_key_map(tmp, &handler, &arg))
786 if (strlen(handler) != 1)
795 if (find_cmd_byname(arg) < 0)
805 * React to various signal-related events
807 static void handle_signal(int sig)
811 msg_n_exit(EXIT_FAILURE,
812 "only the good die young (caught SIGTERM))\n");
822 PARA_WARNING_LOG("%s", "caught SIGINT, reset");
823 /* Nothing to do. SIGINT killed our child, para_client stat.
824 * This get noticed by do_select which resets everything
828 PARA_NOTICE_LOG("%s", "got SIGUSR1, rereading configuration");
837 static int open_audiod_pipe(void)
845 return para_open_audiod_pipe(conf.stat_cmd_arg);
849 * This is the core select loop. Besides the (internal) signal
850 * pipe, the following other fds are checked according to the mode:
852 * GETCH_MODE: check stdin, return when key is pressed
854 * COMMAND_MODE: check command_pipe and stdin. Return when a screen full
855 * of output has been read or when other end has closed command pipe or
856 * when any key is pressed.
858 * EXTERNAL_MODE: Check only signal pipe. Used when an external command
859 * is running. During that thime curses is disabled. Returns when
862 static int do_select(int mode)
866 int max_fileno, cp_numread = 1;
867 char command_buf[4096] = "";
868 int cbo = 0; /* command buf offset */
871 tv.tv_sec = conf.timeout_arg / 1000;
872 tv.tv_usec = (conf.timeout_arg % 1000) * 1000;
873 // ret = refresh_status();
878 audiod_pipe = open_audiod_pipe();
879 if (audiod_pipe >= 0)
880 para_fd_set(audiod_pipe, &rfds, &max_fileno);
882 para_fd_set(signal_pipe, &rfds, &max_fileno);
883 /* command pipe only for COMMAND_MODE */
884 if (command_pipe >= 0 && mode == COMMAND_MODE)
885 para_fd_set(command_pipe, &rfds, &max_fileno);
886 ret = para_select(max_fileno + 1, &rfds, NULL, &tv);
888 goto check_return; /* skip fd checks */
890 if (FD_ISSET(signal_pipe, &rfds)) {
891 int sig_nr = para_next_signal();
893 handle_signal(sig_nr);
895 /* read command pipe if ready */
896 if (command_pipe >= 0 && mode == COMMAND_MODE &&
897 FD_ISSET(command_pipe, &rfds)) {
898 cp_numread = read(command_pipe, command_buf + cbo,
899 sizeof(command_buf) - 1 - cbo);
904 PARA_ERROR_LOG("read error (%d)", cp_numread);
909 if (audiod_pipe >= 0 && FD_ISSET(audiod_pipe, &rfds))
910 if (read_audiod_pipe(audiod_pipe, check_stat_line) <= 0) {
914 free(stat_content[SI_STATUS_BAR]);
915 stat_content[SI_STATUS_BAR] =
916 para_strdup("audiod not running!?");
922 if (cp_numread <= 0 && !cbo) /* command complete */
925 cbo = for_each_line(command_buf, cbo, &add_output_line);
929 ret = wgetch(top.win);
930 if (ret != ERR && ret != KEY_RESIZE) {
936 kill(cmd_pid, SIGTERM);
941 ret = wgetch(top.win);
942 if (ret != ERR && ret != KEY_RESIZE)
955 * read from command pipe and print data to bot window
957 static int send_output(void)
959 if (command_pipe < 0)
961 if (do_select(COMMAND_MODE) >= 0)
962 PARA_INFO_LOG("%s", "command complete");
964 PARA_NOTICE_LOG("%s", "command aborted");
965 print_in_bar(COLOR_MSG, " ");
969 static int client_cmd_cmdline(char *cmd)
971 int ret, fds[3] = {0, 1, 0};
972 char *c = make_message(BINDIR "/para_client %s", cmd);
974 outputf(COLOR_COMMAND, "%s", c);
975 print_in_bar(COLOR_MSG, "executing client command, hit any key to abort\n");
976 ret = para_exec_cmdline_pid(&cmd_pid, c, fds);
980 command_pipe = fds[1];
981 mark_fd_nonblock(command_pipe);
982 return send_output();
986 * exec command and print output to bot win
988 static int display_cmd(char *cmd)
990 int fds[3] = {0, 1, 0};
992 print_in_bar(COLOR_MSG, "executing display command, hit any key to abort");
993 outputf(COLOR_COMMAND, "%s", cmd);
994 if (para_exec_cmdline_pid(&cmd_pid, cmd, fds) < 0)
996 command_pipe = fds[1];
997 mark_fd_nonblock(command_pipe);
998 return send_output();
1002 * shutdown curses and stat pipe before executing external commands
1004 static int external_cmd(char *cmd)
1006 int fds[3] = {-1, -1, -1};
1011 para_exec_cmdline_pid(&cmd_pid, cmd, fds);
1013 do_select(EXTERNAL_MODE);
1018 static void print_scroll_msg(void)
1020 unsigned lines_total, filled = ringbuffer_filled(bot_win_rb);
1021 int first_rbe = first_visible_rbe(&lines_total);
1022 print_in_bar(COLOR_MSG, "scrolled view: %d-%d/%d\n", filled - first_rbe,
1023 filled - scroll_position, ringbuffer_filled(bot_win_rb));
1026 static void com_page_down(void)
1029 int i = scroll_position;
1030 while (lines < bot.lines && --i > 0) {
1031 struct rb_entry *rbe = ringbuffer_get(bot_win_rb, i);
1034 lines += NUM_LINES(strlen(rbe->msg));
1037 scroll_position = i;
1042 print_in_bar(COLOR_ERRMSG, "bottom of buffer is shown\n");
1045 static void com_page_up(void)
1048 int fvr = first_visible_rbe(&lines);
1049 if (fvr < 0 || fvr + 1 >= ringbuffer_filled(bot_win_rb)) {
1050 print_in_bar(COLOR_ERRMSG, "top of buffer is shown\n");
1053 scroll_position = fvr + 1;
1054 for (; scroll_position > 0; scroll_position--) {
1055 fvr = first_visible_rbe(&lines);
1056 if (lines == bot.lines)
1063 static void com_scroll_down(void)
1065 struct rb_entry *rbe;
1068 if (!scroll_position) {
1069 print_in_bar(COLOR_ERRMSG, "bottom of buffer is shown\n");
1073 rbe = ringbuffer_get(bot_win_rb, scroll_position);
1074 rbe_lines = NUM_LINES(rbe->len);
1075 wscrl(bot.win, rbe_lines);
1076 wmove(bot.win, bot.lines - rbe_lines, 0);
1077 wattron(bot.win, COLOR_PAIR(rbe->color));
1078 waddstr(bot.win, rbe->msg);
1083 static void com_scroll_up(void)
1085 struct rb_entry *rbe = NULL;
1087 int i, first_rbe, num_scroll;
1089 /* the entry that is going to vanish */
1090 rbe = ringbuffer_get(bot_win_rb, scroll_position);
1093 num_scroll = NUM_LINES(rbe->len);
1094 first_rbe = first_visible_rbe(&lines);
1095 if (first_rbe < 0 || (first_rbe == ringbuffer_filled(bot_win_rb) - 1))
1098 wscrl(bot.win, -num_scroll);
1099 i = draw_top_rbe(&lines);
1102 while (i > 0 && lines < num_scroll) {
1104 rbe = ringbuffer_get(bot_win_rb, --i);
1107 rbe_lines = NUM_LINES(rbe->len);
1109 // fprintf(stderr, "msg: %s\n", rbe->msg);
1110 wattron(bot.win, COLOR_PAIR(rbe->color));
1111 waddstr(bot.win, "\n");
1112 waddstr(bot.win, rbe->msg);
1121 print_in_bar(COLOR_ERRMSG, "top of buffer is shown\n");
1124 static void com_ll_decr(void)
1126 if (conf.loglevel_arg <= DEBUG) {
1127 print_in_bar(COLOR_ERRMSG,
1128 "loglevel already at maximal verbosity\n");
1131 conf.loglevel_arg--;
1132 print_in_bar(COLOR_MSG, "loglevel set to %d\n", conf.loglevel_arg);
1135 static void com_ll_incr(void)
1137 if (conf.loglevel_arg >= EMERG) {
1138 print_in_bar(COLOR_ERRMSG,
1139 "loglevel already at miminal verbosity\n");
1142 conf.loglevel_arg++;
1143 print_in_bar(COLOR_MSG, "loglevel set to %d\n", conf.loglevel_arg);
1147 * reread configuration, terminate on errors
1149 static void com_reread_conf(void)
1151 char *cf =configfile_exists();
1152 struct gui_cmdline_parser_params params = {
1155 .check_required = 0,
1156 .check_ambiguity = 0
1160 PARA_WARNING_LOG("%s", "there is no configuration to read");
1163 PARA_INFO_LOG("%s", "rereading command line options and config file");
1164 gui_cmdline_parser(_argc, _argv, &conf);
1165 gui_cmdline_parser_config_file(cf, &conf, ¶ms);
1166 PARA_NOTICE_LOG("%s", "config file reloaded");
1167 if (check_key_map_args() < 0)
1168 finish(EXIT_FAILURE);
1171 static void com_help(void)
1175 for (i = 0; i < conf.key_map_given; ++i) {
1176 char *handler, *arg, *tmp = para_strdup(conf.key_map_arg[i]);
1177 const char *handler_text = "???", *desc = NULL;
1179 if (!split_key_map(tmp, &handler, &arg)) {
1185 handler_text = "internal";
1186 desc = command_list[find_cmd_byname(arg)].description;
1188 case 'x': handler_text = "external"; break;
1189 case 'd': handler_text = "display "; break;
1190 case 'p': handler_text = "para "; break;
1192 outputf(COLOR_MSG, "%s\t%s\t%s%s\t%s", tmp, handler_text, arg,
1193 strlen(arg) < 8? "\t" : "",
1197 for (i = 0; command_list[i].handler; i++) {
1198 struct gui_command gc = command_list[i];
1200 outputf(COLOR_MSG, "%s\tinternal\t%s\t%s%s", gc.key, gc.name,
1201 strlen(gc.name) < 8? "\t" : "",
1204 print_in_bar(COLOR_MSG, "try \"para_gui -h\" or \"para_client help\" "
1208 static void com_shrink_top_win(void)
1210 if (top.lines <= theme.top_lines_min) {
1211 PARA_WARNING_LOG("%s", "can not decrease top window");
1214 init_wins(top.lines - 1);
1217 print_in_bar(COLOR_MSG, "%s", "decreased top window");
1220 static void com_enlarge_top_win(void)
1222 if (bot.lines < 3) {
1223 PARA_WARNING_LOG("%s", "can not increase top window");
1226 init_wins(top.lines + 1);
1229 print_in_bar(COLOR_MSG, "increased top window");
1232 static void com_version(void)
1234 print_in_bar(COLOR_MSG, "para_gui " PACKAGE_VERSION " \""
1238 static void com_quit(void)
1243 static void com_refresh(void)
1249 static void change_theme(int next)
1255 /* This seems to be needed twice, why? */
1258 PARA_NOTICE_LOG("new theme: %s", theme.name);
1261 static void com_next_theme(void)
1266 static void com_prev_theme(void)
1272 static void handle_command(int c)
1276 /* first check user's key bindings */
1277 for (i = 0; i < conf.key_map_given; ++i) {
1278 char tmp[MAXLINE], *handler, *arg;
1280 strcpy(tmp, conf.key_map_arg[i]);
1281 if (!split_key_map(tmp, &handler, &arg))
1283 if (!strcmp(tmp, km_keyname(c))) {
1284 if (*handler == 'd') {
1288 if (*handler == 'x') {
1292 if (*handler == 'p') {
1293 client_cmd_cmdline(arg);
1296 if (*handler == 'i') {
1297 int num = find_cmd_byname(arg);
1299 command_list[num].handler();
1304 /* not found, check internal key bindings */
1305 for (i = 0; command_list[i].handler; i++) {
1306 if (!strcmp(km_keyname(c), command_list[i].key)) {
1307 command_list[i].handler();
1311 print_in_bar(COLOR_ERRMSG, "key '%s' is not bound, press ? for help",
1315 int main(int argc, char *argv[])
1323 if (gui_cmdline_parser(argc, argv, &conf)) {
1324 fprintf(stderr, "parse error while reading command line\n");
1327 HANDLE_VERSION_FLAG("gui", conf);
1328 init_theme(0, &theme);
1329 top.lines = theme.top_lines_default;
1330 if (check_key_map_args() < 0) {
1331 fprintf(stderr, "invalid key map\n");
1334 cf = configfile_exists();
1335 if (!cf && conf.config_file_given) {
1336 fprintf(stderr, "can not read config file %s\n",
1337 conf.config_file_arg);
1341 struct gui_cmdline_parser_params params = {
1344 .check_required = 0,
1345 .check_ambiguity = 0
1347 gui_cmdline_parser_config_file(cf, &conf, ¶ms);
1349 if (check_key_map_args() < 0) {
1350 fprintf(stderr, "invalid key map in config file\n");
1353 setup_signal_handling();
1354 bot_win_rb = ringbuffer_new(RINGBUFFER_SIZE);
1355 initscr(); /* needed only once, always successful */
1360 ret = do_select(GETCH_MODE);
1363 print_in_bar(COLOR_MSG, " ");
1364 handle_command(ret);